Index

Acknowledgments vii

I   1

1   Introduction 3

2   Where We Have Been and Where We Are Headed 21

3   The Look and Feel of E-tactics and Their Web Sites 43

II  Leveraging Low Costs Online 63

4   Taking Action on the Cheap: Costs and Participation 65

5   Making Action on the Cheap: Costs and Organizing 99

III From Copresence to Coordination 121

6   Being Together versus Working Together Copresence in Participation 123

7   From Power in Numbers to Power Laws: Copresence in Organizing 147

IV  175

8   A New Digital Repertoire of Contention? 177

9   Conclusion 193

Methodological Appendix 207 
Notes 223 
Glossary 233 
References 235 
Index 251